/*
    This file is part of Cyclos (www.cyclos.org).
    A project of the Social Trade Organisation (www.socialtrade.org).

    Cyclos is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    Cyclos is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Cyclos; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 */
package nl.strohalm.cyclos.utils.validation;

import java.io.Serializable;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import nl.strohalm.cyclos.utils.ClassHelper;

import org.apache.commons.lang.StringUtils;

/**
 * Indicates a validation error
 * @author luis
 */
public class ValidationError implements Serializable {
    private static final long  serialVersionUID = -199096962075777462L;
    private final List<Object> arguments;
    private final String       key;

    public ValidationError(final String messageKey, final Object... arguments) {
        key = messageKey;
        this.arguments = (arguments == null ? Collections.emptyList() : Collections.unmodifiableList(Arrays.asList(arguments)));
    }

    public List<Object> getArguments() {
        return arguments;
    }

    public String getKey() {
        return key;
    }

    @Override
    public String toString() {
        List<Object> args = getArguments();
        if (args == null) {
            args = Collections.emptyList();
        }
        return String.format("%s {%s [%s]}", ClassHelper.getClassName(getClass()), getKey(), StringUtils.join(args.iterator(), ", "));
    }
}
